1 package de.juplo.kafka.chat.backend.implementation.kafka;
3 import de.juplo.kafka.chat.backend.ChatBackendProperties;
4 import lombok.extern.slf4j.Slf4j;
5 import org.apache.kafka.clients.producer.ProducerRecord;
6 import org.apache.kafka.common.TopicPartition;
7 import org.springframework.boot.context.properties.EnableConfigurationProperties;
8 import org.springframework.boot.test.context.TestConfiguration;
9 import org.springframework.context.annotation.Bean;
10 import org.springframework.context.annotation.Import;
11 import org.springframework.kafka.core.KafkaTemplate;
12 import org.springframework.kafka.support.SendResult;
14 import java.time.Clock;
15 import java.util.List;
19 public class KafkaTestUtils
22 @EnableConfigurationProperties(ChatBackendProperties.class)
23 @Import(KafkaServicesConfiguration.class)
24 public static class KafkaTestConfiguration
27 public WorkAssignor dataChannelWorkAssignor(
28 ChatBackendProperties properties,
29 DataChannel dataChannel)
33 List<TopicPartition> assignedPartitions =
34 List.of(new TopicPartition(properties.getKafka().getDataChannelTopic(), 2));
35 consumer.assign(assignedPartitions);
36 dataChannel.onPartitionsAssigned(assignedPartitions);
43 return Clock.systemDefaultZone();
48 public static void sendAndLoadStoredData(
49 KafkaTemplate<String, String> messageTemplate,
52 ConsumerTaskRunner consumerTaskRunner)
54 send(messageTemplate, infoTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\": \"5c73531c-6fc4-426c-adcb-afc5c140a0f7\", \"shard\": 2, \"name\": \"FOO\" }", "event_chatroom_created");
55 send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"peter\", \"text\" : \"Hallo, ich heiße Peter!\" }", "event_chatmessage_received");
56 send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"ute\", \"text\" : \"Ich bin Ute...\" }", "event_chatmessage_received");
57 send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 2, \"user\" : \"peter\", \"text\" : \"Willst du mit mir gehen?\" }", "event_chatmessage_received");
58 send(messageTemplate, dataTopic, "5c73531c-6fc4-426c-adcb-afc5c140a0f7","{ \"id\" : 1, \"user\" : \"klaus\", \"text\" : \"Ja? Nein? Vielleicht??\" }", "event_chatmessage_received");
60 consumerTaskRunner.executeConsumerTasks();
63 private static void send(
64 KafkaTemplate<String, String> kafkaTemplate,
70 ProducerRecord<String, String> record = new ProducerRecord<>(topic, key, value);
71 record.headers().add("__TypeId__", typeId.getBytes());
72 SendResult<String, String> result = kafkaTemplate.send(record).join();
77 new TopicPartition(result.getRecordMetadata().topic(), result.getRecordMetadata().partition()));
80 public static void joinConsumerTasks(ConsumerTaskRunner consumerTaskRunner)
82 consumerTaskRunner.joinConsumerTasks();